Setup parent stylesheet for tree boundary crossing rules.

Source/core/css/TreeBoundaryCrossingRules.h

Index: Source/core/css/TreeBoundaryCrossingRules.h
diff --git a/Source/core/css/TreeBoundaryCrossingRules.h b/Source/core/css/TreeBoundaryCrossingRules.h
index d08c68282503e1b9d5494153654a75d4f59aa095..eddf1bcb93ed44482fc19d7935f0ab8fe7e841ae 100644
--- a/Source/core/css/TreeBoundaryCrossingRules.h
+++ b/Source/core/css/TreeBoundaryCrossingRules.h
@@ -33,27 +33,29 @@
 namespace WebCore {
 
 class ContainerNode;
+class ElementRuleCollector;
+class MinimalRuleData;
 class RuleFeatureSet;
+class RuleSet;
 
 class TreeBoundaryCrossingRules {
     DISALLOW_ALLOCATION();
 public:
-    void addRule(StyleRule*, size_t selectorIndex, ContainerNode* scopingNode, AddRuleFlags);
-    void clear() { m_treeBoundaryCrossingRuleSetMap.clear(); }
+    void addTreeBoundaryCrossingRules(const RuleSet&, ContainerNode*, CSSStyleSheet* parentStyleSheet);
     void reset(const ContainerNode* scopingNode);
-    bool isEmpty() const { return m_treeBoundaryCrossingRuleSetMap.isEmpty(); }
     void collectFeaturesTo(RuleFeatureSet&);
-
-    DocumentOrderedList::iterator begin() { return m_scopingNodes.begin(); }
-    DocumentOrderedList::iterator end() { return m_scopingNodes.end(); }
-    size_t size() const { return m_scopingNodes.size(); }
-    RuleSet* ruleSetScopedBy(const ContainerNode* scopingNode) { return m_treeBoundaryCrossingRuleSetMap.get(scopingNode); }
+    void collectTreeBoundaryCrossingRules(Element*, ElementRuleCollector&, bool includeEmptyRules);
 
     void trace(Visitor* visitor) { visitor->trace(m_treeBoundaryCrossingRuleSetMap); }
-
 private:
+    typedef std::pair<CSSStyleSheet*, OwnPtrWillBeMember<RuleSet> > CSSStyleSheetRules;
+    typedef Vector<CSSStyleSheetRules> CSSStyleSheetRuleSubSet;

[esprehn, 2014/03/26 19:16:03]

This doesn't make sense to me, tree boundary crossing rules are already owned by
a CSSStyleSheet from somewhere.

+    size_t size() const { return m_scopingNodes.size(); }
+    void collectFeaturesFromStyleSheetSubSet(TreeBoundaryCrossingRules::CSSStyleSheetRuleSubSet* styleSheetSubSet, RuleFeatureSet& features);
+    void addRules(const WillBeHeapVector<MinimalRuleData>& rules, ContainerNode* scope, CSSStyleSheet* parentStyleSheet);
+
     DocumentOrderedList m_scopingNodes;
-    typedef WillBeHeapHashMap<const ContainerNode*, OwnPtrWillBeMember<RuleSet> > TreeBoundaryCrossingRuleSetMap;
+    typedef WillBeHeapHashMap<const ContainerNode*, OwnPtrWillBeMember<CSSStyleSheetRuleSubSet> > TreeBoundaryCrossingRuleSetMap;
     TreeBoundaryCrossingRuleSetMap m_treeBoundaryCrossingRuleSetMap;
 };